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403868049 = 31323114481
BaseRepresentation
bin11000000100101…
…000100110010001
31001010221121210220
4120010220212101
51311342234144
6104024143253
713002551604
oct3004504621
91033847726
10403868049
11197a78052
12b3307b29
13658970a0
143b8d033b
15256c9919
hex18128991

403868049 has 16 divisors (see below), whose sum is σ = 580293504. Its totient is φ = 248371200.

The previous prime is 403868033. The next prime is 403868071. The reversal of 403868049 is 940868304.

It is not a de Polignac number, because 403868049 - 24 = 403868033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 403868049.

It is not an unprimeable number, because it can be changed into a prime (403868029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87889 + ... + 92369.

It is an arithmetic number, because the mean of its divisors is an integer number (36268344).

Almost surely, 2403868049 is an apocalyptic number.

It is an amenable number.

403868049 is a deficient number, since it is larger than the sum of its proper divisors (176425455).

403868049 is a wasteful number, since it uses less digits than its factorization.

403868049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 403868049 is about 20096.4685703733. The cubic root of 403868049 is about 739.1736874635.

The spelling of 403868049 in words is "four hundred three million, eight hundred sixty-eight thousand, forty-nine".

Divisors: 1 3 13 39 2311 4481 6933 13443 30043 58253 90129 174759 10355591 31066773 134622683 403868049